After successfully becoming the 1st winner in the first qualification of Jabodetabek level on November 19, 2017 in Jakarta, and won the 1st place in the second qualification at Jabodetabek level on March 4, 2018 in Jakarta and after passing 3 days camp in Karawaci, Kent Samuel Suzanto, a second grader of SDK 6 PENABUR successfully became the first winner in the Best of the Best National Competition (BOBNAS) in Tangerang.
Being the first winner (The Champion) in BOBNAS, Kent Samuel Suzanto proceeded to compete in the international Mental Arithmetic competition (WAAMA). In 2018 the competition was held in Bandung, Indonesia where the competition was only for those participants who passed the championship in BOBNAS 2018.
The result of this 2018 WAAMA competition was Kent Samuel Suzanto successfully winning the GOLD MEDAL, the 1st prize of The World Association of Abacus and Mental Arithmetic (WAAMA) held on July 28, 2018 in Bandung. Kent competed with other participants from various countries out of Indonesia, they were from Lebanon, United Kingdom, USA, India, Taiwan and China.